German technology
Humic Substances Based Products
Humintech GmbH
Am Pösenberg 9-13
D-41517 Grevenbroich

Telefon: +49 2181 70 676 - 0
Fax: +49 2181 70 676 - 22
E-Mail senden

HS®-300BIO BASIC is a liquid soil conditioner based on high quality micronized German Leonardite that contains a high proportion of humic substances. Produced via a mechanical micronizing process, the humic particles < 5 μm are held in aqueous suspension. As a result, the humic acids remain as humic substances molecules, which endure in the soil for a longer period, raising organic matter levels over time.

HS®-300BIO BASIC improves the structure, the buffer capacity and nutrient exchange capacity of soils. It has a low precipitation reactivity and a low pH-value of  4  which allows for good compatibility with most pesticides and fertilizers. (Pre-mixing test advised).

HS®-300BIO BASIC stimulates root growth in soils and sustainably improves the soil structure. It can be applied in fertigation and hydroponic systems or sprayed using conventional foliar or sprinkler techniques.


  • Supports the formation of clay–humus complexes and soil aggregation and reduces soil erosion
  • Increases the quantity and the quality of yields through the full utilization of potential nutrients in the soil
  • Increases biomass production and stimulates CO2 sequestration in soils
  • Improves fertilizer efficiency and promotes more uniform yields
  • It has a very high technical and chemical compatibility with liquid fertilizers and plant protective agents (pre–mixing test advised)
  • Increases the biological activity and cation exchange capacity (CEC) in soils


  • Agriculture
  • Vegetable Production
  • Fruit Production 
  • Substrate Cultivation
  • Hydroponics
  • Turf and Landscaping


12 - 15 L/ha divided into several applications (2 - 3 L/ha) during the vegetation period

50 - 75 ml/100 L water every 2 - 3 weeks over the vegetation period

2 - 3 L/m³

0.5 % or 500 ml/100 kg seed dressing according to thousand grain weight (T.G.W.)

30 - 50 ml/1000 L nutrient solution during the cultivation cycle

* These are standard recommendations that can vary according to soil properties, cultivated crop and local system conditions.

INHERENT COMPOSITION  (Typical values based on Fresh Matter)

Total Humic Acids 1

28 %

Humic Acid 1

21 - 22 %

Fulvic Acid 1

5 - 6 %

Dry Matter

27 - 30 %

Organic Substance

28 %

pH - value



1,12 - 1,13 kg/L

 Particle sizes

< 5 μm

according to ISO 19822 / HPTA / AAPFCO / IHSS Analysis method
“All Humintech humic substances based products are analysed according to the HPTA test method (ISO 19822:2018) to determine the content of humic and hydrophobic fulvic acids. Most suppliers are using the more simple “colorimetric” analysis method to determine the humic and fulvic acid contents, but experience shows that, due to its inaccuracy, this method indicates higher contents and is not suited to identify non humic substances such as lignosulphonates. In order to maintain the highest quality standard, Humintech has therefore decided to use the currently best analytical standard for the determination of humic and fulvic acids within the scope of quality control.”


Store in a dry place, protected from frost, heat and direct sunlight. Store out of the reach of children!

Delivery specs

1 L

5/10/20 L



If you are looking for a highly concentrated water soluble Humic Acid POWHUMUS® WSG 85

Organic Soil Conditioner POWHUMUS® WSG 85 Find out more

If you are looking for a Granulated Natural Humic Acids PERLHUMUS® Granules

Organic Soil Conditioner PERLHUMUS® Granules Find out more

If you are looking for a liquid Humic Acid with a high percentage of Fulvic Acid FULVAGRA® Liquid 25

Highly Bioactive Growth Promoting FULVAGRA® Liquid 25  Find out more


If you are looking for a liquid Humic Acid with Potassium Humate 18% LIQHUMUS® Liquid 18

Organic Soil Conditioner LIQHUMUS® Liquid 18 Find out more


Humintech is a biotech company based in Grevenbroich, Germany. We are primarily focused on the research, development and industrial production of humic matter and humic acids for the agricultural sector. Our products find further use in pharmaceutical, construction industry, for ecological purposes such as water purification and soil decontamination.


Humintech GmbH

Am Pösenberg 9-13
41517 Grevenbroich / Deutschland 

Phone: +49 2181 70 676 - 0
Fax: +49 2181 70 676 - 22


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